Section of South Point Prairie to Close for 6-8 weeks, N. Point Prairie for 1 Day

REVISED 5-16-18 with new start date for South Point Prairie. The St. Charles County Highway Department will close sections of North Point Prairie Road and South Point Prairie Road, weather permitting, starting Monday, May 21, 2018, to allow for removal and replacement of deteriorated culverts.

  •  North Point Prairie Road between Highway 61 and Crystalwood Court will close for approximately six hours, between 8 a.m. and 2 p.m., on May 21 only.
  •  South Point Prairie Road between Dyer Road and Meinershagen Road will close for approximately 6-8 weeks starting May 29.

Traffic will be required to use detour routes around the closures while the culverts are replaced. Local traffic can access either side of each closure locations, but no through traffic will be permitted. Signs notifying motorists of the closures and necessary detours will be posted.

These road projects are part of a continuing effort by St. Charles County Government to improve the County’s road system for the safety of the traveling public. For more information about road projects underway in unincorporated St. Charles County, please call the Highway Department at 636-949-7305 or visit